Ingineria Iluminatului - Journal of Lighting Engineering - Prof. Florin ...

32
[ V ]
UL=f(IL) 50 Hz
200
150
100
50
0
-5 -4 -3 -2 -50 -1 0
-100
-150
-200
[ A ]
1 2 3 4 5
Figure 8 Volt-ampere characteristics during
work simulation of 250 W HID lamp supplied
with sinusoidal voltage with frequency 50 Hz
5. Conclusions
A combined high pressure sodium lamp
analytical and program model is developed and
examined. The model agrees with the
experimental measurements. Volt-ampere
dependencies of the illumination arc, anode and
cathode areas are obtained. The anode and
cathode areas electrical properties stabilizing
role on the HID lamp work is determined,
because of their improvement on the lamp
differential resistance. The developed model is
suitable for HID lamp simulation with ballasts
for work up to 1000 Hz.
6. References
1 Mayr O. 1943. Beltrage zur Theorie des
statischen und des dynamischen
Lichtbogens, AfB37, Berlin.
2 Francis V.J. 1947. Fundamentals of
Discharge Tube Circuits, London, Methuen.
3 T. Liu, K.J. Tsend, D.M. Vilathgamova.
1998. A PSpice Model for the Electrical
Characteristics of Fluorescent Lamps, IEEE
Power Electronics Specialists Conference.
4 Рац Н. 2003. Математически модел за
газоразрядни лампи с високо налягане
при димиране, Годишник на ТУ-София,
том 52.
5 Рац Н. 2005. Моделиране на натриеви
лампи с високо налягане при димиране,
Дисертация, София.
UL=f(IL) 500Hz
200
100
[ V ]
0
-5 0 5
-100
-200
[ A ]
INGINERIA ILUMINATULUI 15-2005
Figure 9 Volt-ampere characteristics during work
simulation of 250 W HID lamp supplied with
sinusoidal voltage with frequency 500 Hz
6 Kapzow N. A. 1955. Elektrische Vorgange
in Gasen und in Vacuum. Berlin: VEB
Deutschen Verlag der Wissenschalten.
7 Фугенфиров М. И. 1974. Электрические
схемы с газоразрядными лампами,
Энергия, Москва.
Neli Simeonova RATZ
Senior Assistant in the United
Technical College by TU - Sofi a,
Sofi a –1797, Student town,
Kliment Ohridski str. 8, Bl. XII,
cab. 12216; Tel.: +359-2-965-
20-51, +359-2-965-36-43;
E-mail: neliratz@yahoo.com
Nicolina Ivanova YANEVA
M. Sc. in physics – Scientifi c,
research, testing and calibration
laboratory in lighting by TU – Sofi a,
Sofi a –1797, Student town, Kliment
Ohridski str. 8, Bl. III, cab. 3101a;
Tel.: +359-2-965-27-14, +359-2-
965-39-03;Fax: +359-2-868-67-19;
E-mails: niya@tu-sofi a.bg;
nikyan@rocketmail.com
Received 20 July 2005
Reviewers: Professor Mircea CHINDRIŞ, Professor
Florin POP, Ass. Professor Dorin BEU